Oil filter adapter

ABSTRACT

An oil filter adapter device may be used to enable an engine or other machine that was manufactured for using cartridge oil filters to use spin-on oil filters. In some examples, the oil filter adapter may have a docking collar for coupling with an engine, a cylindrical base for coupling with an oil filter housing, and an attachment piece for coupling with a spin-on oil filter. The oil filter adapter may also have a spring disposed between the docking collar and the cylindrical base such that the docking collar is compressible relative to the cylindrical base to allow the oil filter adapter is able to couple to a variety of oil filter housings ranging in size and shape.

BACKGROUND

Vehicles and machinery use oil filters to remove contaminants fromengine oil, transmission oil, or lubricating oil. There are two maintypes of oil filters used for this purpose, cartridge oil filters andspin-on oil filters. Many vehicles and machinery are manufactured to usecartridge oil filters. However, consumers may find spin-on oil filterseasier and less messy to replace. Additionally, the oil filter housingin vehicles may vary in size, even between two vehicles of the same makeand model. Thus, there is a need for an oil filter adapter device thatcan fit a variety of oil filter housing sizes and can enable use of usespin-on oil filters for systems that were originally designed to usecartridge oil filters.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed description is set forth with reference to the accompanyingfigures. The use of the same reference numbers in different figuresindicates similar or identical items.

FIG. 1A is a schematic view showing an example oil filter adapteradapting a vehicle to use a spin-on oil filter.

FIG. 1B illustrates a perspective view of an example oil filter adapterviewed from above.

FIG. 1C illustrates a perspective view of the example oil filter adapterof FIG. 1B viewed from below.

FIG. 1D illustrates a top view of the example oil filter adapter of FIG.1B.

FIG. 1E illustrates a bottom view of the example oil filter adapter ofFIG. 1B.

FIG. 1F illustrates a front view of the example oil filter adapter ofFIG. 1B, the back and side views of the example oil filter beingidentical to the front view.

FIG. 2A illustrates a bottom view of a base of the example oil filteradapter of FIG. 1B.

FIG. 2B illustrates a cross section of the base of the example oilfilter adapter of FIG. 1B taken along line B-B in FIG. 2A.

FIG. 2C illustrates a side view of the base of the example oil filteradapter of FIG. 1B.

FIG. 2D illustrates a top view of the base of the example oil filteradapter of FIG. 1B.

FIG. 3A illustrates a side view of an oil filter attachment of theexample oil filter adapter of FIG. 1B.

FIG. 3B illustrates a top view of the oil filter attachment of theexample oil filter adapter of FIG. 1B.

FIG. 3C illustrates a bottom view of a docking collar of the example oilfilter adapter of FIG. 1B.

FIG. 3D illustrates a side view of the docking collar of the example oilfilter adapter of FIG. 1B.

FIG. 3E illustrates a top view of the docking collar of the example oilfilter adapter of FIG. 1B.

FIG. 4A is a schematic view showing an example oil filter adapteradapting a vehicle to use a spin-on oil filter.

FIG. 4B illustrates a perspective view of another example oil filteradapter viewed above.

FIG. 4C illustrates a perspective view of the example oil filter adapterof FIG. 4B viewed from below.

FIG. 4D illustrates a top view of the example oil filter adapter of FIG.4B.

FIG. 4E illustrates a bottom view of the example oil filter adapter ofFIG. 4B.

FIG. 4F illustrates a front view of the example oil filter adapter ofFIG. 4B.

FIG. 4G illustrates a back view of the example oil filter adapter ofFIG. 4B

FIG. 4H illustrates a side view of the example oil filter adapter ofFIG. 4B, the opposite side view being identical to the side view of FIG.4H.

FIG. 5A illustrates a bottom view of a base of the example oil filteradapter of FIG. 4B.

FIG. 5B illustrates a cross section of the base of the example oilfilter adapter of FIG. 4B taken along line B-B in FIG. 5A.

FIG. 5C illustrates a side view of the base of the example oil filteradapter of FIG. 4B.

FIG. 5D illustrates a top view of the base of the example oil filteradapter of FIG. 4B.

FIG. 6A illustrates a bottom view of a docking collar of the example oilfilter adapter of FIG. 4B.

FIG. 6B illustrates a side view of the docking collar of the example oilfilter adapter of FIG. 4B.

FIG. 6C illustrates a top view of the docking collar of the example oilfilter adapter of FIG. 4B.

FIG. 6D illustrates a top view of the oil filter attachment of theexample oil filter adapter of FIG. 4B.

FIG. 6E illustrates a side view of an oil filter attachment of theexample oil filter adapter of FIG. 4B.

FIG. 6F illustrates a bottom view of the oil filter attachment of theexample oil filter adapter of FIG. 4B.

FIG. 7A illustrates a bottom view of another example docking collar thatcould be used with either the example oil filter adapter of FIG. 4B or1B.

FIG. 7B illustrates a side view of another example docking collar thatcould be used with either the example oil filter adapter of FIG. 4B or1B.

FIG. 7C illustrates a top view of another example docking collar thatcould be used with either the example oil filter adapter of FIG. 4B or1B.

FIG. 8A illustrates an exploded view of the example oil filter adapterof FIG. 4B.

FIG. 8B illustrates an exploded view of the example oil filter adapterof 1B.

DETAILED DESCRIPTION

Overview

As discussed above, there are two main types of oil filters used invehicles and machinery today, namely cartridge oil filters and spin-onoil filters. Many vehicles and machinery are manufactured to usecartridge oil filters. Cartridge oil filters may be difficult to accessbecause they are located within an oil filter housing and are usuallycovered in dirty oil, making them difficult to replace cleanly. Spin-onoil filters are typically easier to access when replacing because theyare attached to the exterior of an oil filter housing, and are muchcleaner because there is no need to actually touch the filter cartridgewithin the spin-on cap. Furthermore, the oil filter housing may vary insize between vehicles, even between vehicles of the same make and model.It is imperative that an oil filter adapter make a proper seal with theoil filter housing, or else oil will leak which may cause extensivedamage to the engine.

This application describes an oil filter adapter that can be used in anengine to enable an oil filter system that is designed for usingcartridge oil filters to use spin-on oil filters. The oil filter adaptermay be configured to attach to an oil filter housing of a vehicle, forma seal with the oil filter housing, and have an attachment for a spin-onoil filter. The oil filter adapter may have a first end that attaches toan oil filter housing and a second end that attaches to a spin-on oilfilter. The spin-on oil filter may be attached directly to theattachment of the oil filter adapter or the spin-on oil filter may belocated remotely from the oil filter adapter and be attached via hosesand an additional filter mount. As an example of an oil filter adapterwith a spin-on oil filter attached directly to the oil filter adapter,the oil filter adapter may have a cylindrical base with threads thatallow the base to couple to the oil filter housing of a vehicle or othermachine. The oil filter adapter may also have a docking collar that isattached to the base at one end of the docking collar and forms a sealwith an oil passage of the oil filter housing on another end of thedocking collar. The base may have a threaded attachment piece on anopposite end of the docking collar for attachment to a spin-on oilfilter. When the docking collar, cylindrical base, and attachment pieceare all coupled together, they may form a passage for filtered oil andbe capable of attaching to an oil filter housing to receive unfilteredoil from an engine. For instance, when the oil filter adapter isattached to the oil filter housing of the engine, unfiltered oil maytravel through an unfiltered oil passage of the cylindrical base andinto a spin-on oil filter. After the oil is filtered, the oil may travelthrough the oil filter attachment piece, the filtered oil passage of thecylindrical base, and through the docking collar to be distributedthrough the engine.

In some embodiments, the base may have a cylindrical recess sized to fita part of the docking collar. The recess may have two opposite ends. Thefirst end may have a chamfered edge and the second end may have asmaller diameter than the rest of the recess. The recess may alsocontain a spring that has a smaller diameter than the first end of therecess and a larger diameter than the second end of the recess so thatthe spring can be inserted and retained by the recess. The spring may beplaced between the second end of the recess and the docking collar. Thedocking collar may have a retainer that has a smaller diameter than thediameter of the recess and a larger diameter than a diameter of thechamfered edge. The spring may have a length that is longer than alength of the recess when there is no force being exerted on the spring.Thus, when the docking collar is coupled to the base and a force isexerted on the docking collar toward the base, the spring may compressallowing the docking collar to travel a distance into the recess. Whenno downward force is exerted on the docking collar, the spring may exertan upward force on the docking collar allowing the docking collar totravel a distance out of the recess. The retainer of the docking collarand the chamfered edge of the recess retain the docking collar andprevent it from detaching completely from the base. The movable dockingcollar enables the oil filter adapter to attach to oil filter housingshaving a variety of different sizes and dimensions. For instance, thedocking collar is compressible into the base to accommodate differentdistances between the oil filter adapter and a sealing surface around anoil passage of the engine. The compressible docking collar allows thetop face of the docking collar to make a seal with the sealing surfacearound the oil passage of the engine.

The base may also have one or more passages for allowing oil to travelfrom the oil filter housing into an attached spin-on oil filter. Forinstance, there may be a passage between the recess and an edge of thebase that extends through the base between a first end (proximate theengine) and a second end (proximate the spin-on oil filter). In theillustrated example, there are six passages. However, in other examples,there may be any number of one or more separate passages. Once the oilis filtered in the spin-on oil filter, the oil may travel through thespin-on oil attachment piece, base recess, and docking collar to bedistributed into the engine. For instance, the base may be cylindricaland have a recess for filtered oil located in the center of the base,the base may also have a passage, or a plurality of passages, locatedbetween the recess and an edge of the base. In some instances, the firstend of the base that attaches to the oil filter housing may have a flushsurface, so that the recess for filtered oil and the passage, orplurality of passages, extends to the same plane. In some instances, therecess for filtered oil and the edge of the base may extend beyond thepassage, or plurality of passages, creating a well or reservoir belowthe top most surface of the base. When the docking collar is fullycompressed, the well provides additional volume for unfiltered oil tocollect before passing through the passage and into the spin-on oilfilter.

In other examples, the oil filter adapter may have multiple attachmentpieces that allow the oil filter adapter to indirectly attach to aspin-on oil filter. For instance, the oil filter adapter may have an oilin attachment and an oil out attachment. The oil out attachment mayconnect to a hose that transports unfiltered oil to an oil filterlocated in a different location than the oil filter adapter. The oil inattachment may connect to a different hose that transports filtered oilfrom the oil filter back to the oil filter adapter. This is useful insituation where the oil filter housing of an engine is in a hard toreach area. In addition to the ability to relocate an oil filter using aremote mount, the oil filter adapter provides the ability to add otheroil system components to an oil system. For instance, the oil filteradapter may provide the ability to attach coolers, accumulators, and thelike, to an oil system.

The docking collar and base may be comprised of a variety of differentmetals, plastics, and/or ceramics. In some examples, the docking collarmay be comprised of billet aluminum, stainless steel, or a combinationthereof. Additionally the docking collar may be anodized to aid in theprocess of cleaning and to prevent corrosion and pitting. Each part maybe machined or cast, for example. The seals may comprise O-rings made ofrubber, silicone, or other materials that are resistant to the oil to befiltered. In other examples, the base and/or docking collar may becomprised of plastic and may be formed by, for example, injectionmolding. While the following examples of the oil filter adapter areshown as being cylindrical, in other examples, the oil filter adapterscan be other shapes (e.g. having other geometries such as rectangular,hexagonal, octagonal, triangular, pentagonal, oval, diamond, heptagonal,octagonal, nonagonal, decagonal, etc.).

Example Oil Filter Adapter

Turning now to the figures, details are provided concerning variousexample embodiments. In general, the embodiments disclosed in thefigures are presented by way of example. The components disclosed in thefigures may be combined as desired to create an oil filter adapterhaving various configurations. The components disclosed in the figuresmay be rearranged, modified, duplicated, and/or omitted in someconfigurations.

With reference to FIG. 1A, an example embodiment of an oil filteradapter 100 is illustrated adapting a vehicle to use a spin-on oilfilter. The system in FIG. 1A illustrates an engine 101, an oil filterhousing 103, an oil filter adapter 100, and a spin-on oil filter 105.Broken lines 107 illustrate a flow of oil that travels between the oilfilter housing 103, the oil filter adapter 100, and the spin-on oilfilter 105. For instance, the flow of oil from the oil filter housing103 to the oil filter adapter 100 and into the spin-on oil filter 105may be unfiltered oil. The flow from the spin-on oil filter 105 to theoil filter adapter 100 and back to the oil filter housing 103 may befiltered oil for distribution into engine 101.

With reference to FIG. 1B and FIG. 1C, an example embodiment of an oilfilter adapter 100 is illustrated that includes a base 102, a dockingcollar 104, and an oil filter attachment 106. Base 102 may include aplurality of passages 108 used for transporting unfiltered oil from anengine to an oil filter. Base 102 may also include threads 110 used tocouple with an engine. For instance, threads 110 may attach to an oilfilter housing that is attached to an engine. Docking collar 104 mayhave a face 112 with a seal 114. Seal 114 may be used to couple with aninternal part of an engine and/or an oil filter housing within anengine. Seal 114 may comprise of a rubber O-ring. As illustrated in FIG.1C, oil filter adapter 100 may have an oil filter attachment 106. Oilfilter attachment 106 may be detachable from base 102. Base 102 may alsohave a nut 116 used to secure or tighten the base 102 to the engine.

With reference to FIGS. 1D-1F, oil filter adapter 100 is illustrated todisplay various points of view. For instance, FIG. 1D illustrates a topview of oil filter adapter 100. FIG. 1E illustrates a bottom view of oilfilter adapter 100. FIG. 1F illustrates a front view of oil filteradapter 100.

One embodiment of base 102 is illustrated in greater detail in FIGS.2A-2D. FIG. 2A illustrates a bottom view of base 102, which may includeoil filter attachment 106, passages 108, and nut 116. FIG. 2Billustrates a side cross-sectional view of base 102. FIG. 2B includespassages 108 and recess 118. Recess 118 may be sized to receive dockingcollar 104. Recess 118 may also include chamfered edge 120, and may havea diameter 122. The bottom of recess 118 may have a smaller diameterthan the middle of recess 118. For instance, diameter 122 may be greaterthan diameter 124, which may be greater than diameter 126. FIG. 2Cillustrates a side view of base 102. Base 102 may include threads 110and a recessed portion 128 for retaining a sealing mechanism, such as arubber O-ring. Additionally, bottom portion 130 of base 102 may have alarger diameter than threaded portion 110. FIG. 2D illustrates a topview of base 102, which may include bottom portion 130, threaded portion110, passages 108, recess 118. Additionally, the top view illustratesthe narrowing of recess 118 in diameters 124 and 126.

One embodiment of oil filter attachment 106 is illustrated in greaterdetail in FIGS. 3A and 3B. FIG. 3A illustrates a side view of oil filterattachment 106 with a threaded end 132 and a threaded end 134. End 134may have more threads and be longer than end 132. Additionally, end 134may be used to attach to an oil filter, and end 132 may be used toattach to base 102. FIG. 3B illustrates a bottom view of end 134 of oilfilter attachment 106 and may have a passage 136 for transportingfiltered oil from the oil filter to the oil filter adapter. Additionallypassage may be shaped to receive a wrench.

One embodiment of docking collar 104 is illustrated in greater detail inFIGS. 3C-3E. FIG. 3C illustrates a bottom view of docking collar 104with a passage 138. FIG. 3D illustrates a side view of docking collar104, which may include a top portion 140, a middle portion 142, and abottom portion 146. Additionally, there may be a recess 144 towards thebottom of middle portion 142 sized to couple with a retainer. Theretainer may also act as a seal. The retainer may be a rubber O-ring. Asillustrated in FIG. 3D, top portion 140 may have a larger diameter thanmiddle portion 142, which may have a larger diameter than bottom portion146. Middle portion 142 may be sized to fit inside recess 118 of base102. FIG. 3E illustrates a top view of docking collar 104. Asillustrated in FIG. 3E, docking collar 106 may have a face 112 forcoupling to an engine and/or an oil filter housing. Face 112 may have anouter wall 148 and an inner wall 150, forming recess 152. Recess 152 maybe sized to contain a sealing mechanism, such as seal 114.

With reference to FIG. 4A, an example embodiment of an oil filteradapter 400 is illustrated adapting a vehicle to use a spin-on oilfilter. The system in FIG. 4A illustrates an engine 401, an oil filterhousing 403, an oil filter adapter 400, and a spin-on oil filter 405.Broken lines 407 illustrate a flow of oil that travels between the oilfilter housing 403, the oil filter adapter 400, and the spin-on oilfilter 405. For instance, the flow of oil from the oil filter housing403 to the oil filter adapter 400 and into the spin-on oil filter 405may be unfiltered oil. The flow from the spin-on oil filter 405 to theoil filter adapter 400 and back to the oil filter housing 403 may befiltered oil for distribution into engine 401.

With reference to FIGS. 4B and 4C, an example embodiment of an oilfilter adapter 400 is illustrated that includes base 402, a dockingcollar 404, and oil filter attachments 406 and 408. Base 404 may includea passage 410 used for transporting unfiltered oil from an engine to anoil filter. Passage 410 may be located within a lowered portion 418(i.e. reservoir or well) of the top portion of base 402. Base 402 mayalso include threads 412 used to couple with an engine. For instance,threads 412 may attach to an oil filter housing that is attached to anengine. Docking collar 404 may have a face 414 with a seal 416. Seal 416may be used to couple with an internal part of an engine and/or an oilfilter housing within an engine. Seal 416 may comprise of a rubberO-ring. As illustrated in FIG. 4B, oil filter adapter 400 may have oilfilter attachments 406 and 408. Oil filter attachments 406 and 408 maybe permanently attached or removably attached to base 402. The bottomportion of base 402 may have an extended portion 420 used to exerttorque on the oil filter adapter 400 when coupling with an engine.

With reference to FIGS. 4D-4H, oil filter adapter 400 is illustrated todisplay various points of view. For instance, FIG. 4D illustrates a topview of oil filter adapter 400. FIG. 4E illustrates a bottom view of oilfilter adapter 400. FIG. 4F illustrates a front view of oil filteradapter 400. FIG. 4G illustrates a back view of example oil filteradapter 400. FIG. 4H illustrates a side view of oil filter adapter 400.

One embodiment of base 402 is illustrated in greater detail in FIGS.5A-5D. FIG. 5A illustrates a bottom view of base 402, which may includeoil filter attachments 406 and 408, passage 410, and passage 424.Passage 410 may be used for unfiltered oil whereas passage 424 may beused for filtered oil. FIG. 5B illustrates a side cross-sectional viewof base 402, which may include lowered portion 418, passage 410, andpassage 424. Additionally, base 404 may include recess 422. Passage 424and recess 422 may be connected to form a single passage for filteredoil. Base 404 may also include a chamfered edge 452. FIG. 5C illustratesa side view of base 402. Base 402 may include threads 110 and a recessedportion 426 for retaining a sealing mechanism, such as a rubber O-ring.Additionally, bottom portion 428 of base 402 may have a larger diameterthan threaded portion 412. FIG. 5D illustrates a top view of base 402,which may include lower portion 428, threaded portion 412, loweredportion 418, recess 422, passage 410, and passage 424.

One embodiment of docking collar 404 is illustrated in greater detail inFIGS. 6A-6C. FIG. 6A illustrates a bottom view of docking collar 404with passage 430. FIG. 6B illustrates a side view of docking collar 404which may include a top portion 432, a middle portion 434, and a bottomportion 436. Additionally, there may be a recess 438 towards the bottomof middle portion 434 sized to couple with a retainer. The retainer mayalso act as a seal. The retainer may be a rubber O-ring. As illustratedin FIG. 6B, top portion 432 may have a larger diameter than middleportion 434, which may have a larger diameter than bottom portion 436.Middle portion 434 may be sized to fit inside recess 422 of base 402.FIG. 6C illustrates a top view of docking collar 404. As illustrated inFIG. 6C, docking collar 404 may have a face 414 for coupling to anengine and/or an oil filter housing. Face 414 may have an outer wall 440and an inner wall 442, forming recess 444. Recess 444 may be sized tocontain a sealing mechanism, such as seal 416.

One embodiment of oil filter attachment 406 is illustrated in greaterdetail in FIGS. 6D-6F. FIG. 6D show a bottom view of oil filterattachment 406. FIG. 6E shows a side view of oil filter attachment 406.Oil filter attachment 406 may have a longer end 446 and a shorter end448 with a nut 450 in between the longer end and shorter end. Shorterend 448 may be used to couple with base 402 and longer end 446 may beused to couple with an oil filter. FIG. 6F shows a top view of oilfilter attachment 406. Oil filter attachment 408 may include all of thefeatures of oil filter attachment 406 as described in FIGS. 6D-6F.

In some embodiments, the oil filter adapter 100 or oil filer adapter 400may be coupled with a smaller docking collar than depicted in theirrespective figures. For instance, either oil filter adapter 100 or oilfilter adapter 400 may be coupled with docking collar 700. FIG. 7Aillustrates a bottom view of docking collar 700 with a passage 702. FIG.7B illustrates a side view of docking collar 700, which may include atop portion 704, a middle portion 706, and a bottom portion 708.Additionally, there may be a recess 710 towards the bottom of middleportion 706 sized to couple with a retainer. The retainer may also actas a seal. The retainer may be a rubber O-ring. As illustrated in FIG.7B, top portion 704 may have a larger diameter than middle portion 706,which may have a larger diameter than bottom portion 708. Middle portion706 may be sized to fit inside recess 118 of base 102 or recess 422 ofbase 402. FIG. 7C illustrates a top view of docking collar 700. Asillustrated in FIG. 7C, docking collar 700 may have a face 712 forcoupling to an engine and/or an oil filter housing. Face 712 may have anouter wall 714 and an inner wall 716, forming recess 718. Recess 718 maybe sized to contain a sealing mechanism, such as seal 114 or seal 416.

FIG. 8A illustrates an exploded view of oil filter adapter 400, whichincludes base 402, oil filter attachment 406, and docking collar 404.Additionally, FIG. 8A includes spring 800 with a spring diameter of 802and a spring length of 804. Spring diameter 802 may be larger than thediameter of bottom portion 436 and smaller than a middle portion 434 ofdocking collar 404 such that when spring 800 is inserted into recess 422and docking collar 404 is inserted into recess 422, then spring 800 iscentrally aligned with docking collar 404. Spring 800 may have a length804 that is longer than recess 422 such that when spring 800 is insertedinto recess 422 and docking collar 404 is inserted into recess 422,spring 800 exerts an upward force on docking collar 404 so that retainer806 makes contact with chamfered edge 452 of base 402.

FIG. 8B illustrates an exploded view of oil filter adapter 100, whichincludes base 102, oil filter attachment 106, and docking collar 104.Additionally, FIG. 8B includes spring 808 with a spring diameter of 810and a spring length of 812. Spring diameter 810 may be larger than thediameter of bottom portion 146 and smaller than a middle portion 142 ofdocking collar 104 such that when spring 808 is inserted into recess 118and docking collar 104 is inserted into recess 118, then spring 808 iscentrally aligned with docking collar 104. Spring 808 may have a length812 that is longer than recess 118 such that when spring 808 is insertedinto recess 118 and docking collar 104 is inserted into recess 118,spring 808 exerts an upward force on docking collar 104 so that retainer814 makes contact with chamfered edge 120 of base 402.

CONCLUSION

Although the disclosure describes embodiments having specific structuralfeatures and/or methodological acts, it is to be understood that theclaims are not necessarily limited to the specific features or actsdescribed. Rather, the specific features and acts are merelyillustrative of some embodiments that fall within the scope of claims ofthe application.

What is claimed is:
 1. An oil filter adapter comprising: a cylindricalbase having a first end for coupling to an engine and a second end forcoupling to an oil filter, the cylindrical base having an unfiltered oilpassage and a filtered oil passage; a cylindrical docking collar movablycoupled to the cylindrical base, the cylindrical docking collar having:a first end comprising a retainer for coupling to the first end of thecylindrical base; a second end comprising a sealing face for coupling tothe engine; and a passage through a center of the cylindrical dockingcollar in fluid communication with the filtered oil passage of thecylindrical base; a spring disposed within the filtered oil passage andinterposed between the cylindrical base and the first end of thecylindrical docking collar; and an oil filter attachment coupled withthe second end of the cylindrical base and configured to couple with aspin-on oil filter.
 2. The oil filter adapter device of claim 1, whereinthe first end of the docking collar is received in the filtered oilpassage of the cylindrical base.
 3. The oil filter adapter of claim 1,wherein the second end of the docking collar comprises a head that has awider diameter than the first end the docking collar.
 4. The oil filteradapter of claim 3, wherein the diameter of the first end of the dockingcollar is less than a diameter of the filtered oil passage of the base.5. The oil filter adapter of claim 3, wherein the diameter of the headof the docking collar is greater than a diameter of the first filteredoil passage of the base.
 6. The oil filter adapter of claim 1, wherein:the retainer comprises an O-ring disposed in a groove around an outerperimeter of the first end of the docking collar; and the cylindricalbase comprises a chamfered edge projecting inwardly from an inner wallof the filtered oil passage of the cylindrical base; and such that theO-ring of the docking collar abuts against and is retained within thefiltered oil passage of the cylindrical base by the chamfered edge. 7.The oil filter adapter of claim 1, wherein the sealing face of thesecond end of the docking collar comprises an O-ring at least partiallydisposed within the docking collar to seal against a surface of theengine.
 8. An oil filter adapter comprising: a cylindrical base having afirst end for coupling to an engine and a second end for coupling to anoil filter; a cylindrical docking collar movably coupled to thecylindrical base, the cylindrical docking collar having: a first endcomprising a retainer for coupling to the cylindrical base, the retainercomprising a first rubber O-ring; a second end comprising a sealing facefor coupling to the engine, the sealing face comprising a second rubberO-ring; a passage through a center of the cylindrical docking collar influid communication with a filtered oil passage of the cylindrical base;and at least one oil filter attachment coupled with the second end ofthe cylindrical base.
 9. The oil filter adapter of claim 8, wherein thecylindrical base further comprises a chamfered edge located inside thefiltered oil passage of the cylindrical base that abuts against theretainer of the docking collar to retain the first end of the dockingcollar within the filtered oil passage.
 10. The oil filter adapter ofclaim 8, further comprising a spring interposed between the first end ofthe docking collar and a bottom portion of the filtered oil passage ofthe cylindrical base.
 11. The oil filter adapter of claim 8, wherein thefirst end of the cylindrical base has a top face and a section recessedbelow the top face.
 12. The oil filter adapter of claim 8, wherein thefirst end of the cylindrical base has a substantially flat face.